| 摘要 |
PROBLEM TO BE SOLVED: To provide an installation part structure usable over a wide temperature range, even when comprising a composite material. SOLUTION: A constricted part 22 is formed in an insert 18, and since the cross-sectional area of an intermediate part 18C in the thickness direction (the arrow T direction) in the insert 18 is formed smaller than the cross-sectional area on the first interface surface 18A side and the second interface surface 18B side, while keeping joining strength of the insert 18, a front layer part 14 and a rear layer part 16, stress generated on the first interface surface 18A side and the second interface surface 18B side is relieved by the constructed part 22 by a difference in a linear expansion coefficient in the thickness direction (the arrow T direction) between the insert 18, the front layer part 14 and the rear layer part 16, and separation stress in a first interface surface 18A and a second interface surface 18B is relieved even in a low temperature environment. COPYRIGHT: (C)2008,JPO&INPIT
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